Is this the core of the Rosette Nebula?
Hi Everyone,
I was tooling around the other night with my AP set up and wanted to see if I could find some other cool things of which to take photos...
I found my goto was a bit wonky so I manually locked onto Aldebaran and then synched the scope using Stellariumscope and then clicked on the Rosette Nebula and whoosh, off she went there. I double checked using Betelgeuse and the camera exposure confirmed I was on target, so I went back to Rosette and took this quick snap....(25 secs at ISO 1600).
I wanted to make sure I was on target and couldnt seem to find any nebulosity.....
Questions:
1) IS this the central cluster? It sure looks like it when I compare the stars to Stellarium and Mike Sidonio's core on IOTW.
2) Assuming I am in the right spot....How come I cannot see ANY nebulosity even on a relatively short 25 sec @ ISO 1600...? Is it a VERY diffuse nebula or is it predominately Hydrogen Alpha which my camera cant do....?
I took a similar shot of M1 - Crab Nebula just next door to this and I could see the blob, so I am assuming that my theory in 2) above applies and its simply too dim to capture anything with such a short exposure?
Hope I am not going loopy and shooting the wrong thing, but Flame, M42 and as I said, M1 all stopped on the money using Stellarium scope, central to the sensor and something the camera confirmed each time...
PS. I have attached a 15 sec ISO 1600 snap of M1 as a comparison in the second photo....
Am I right?
EDIT: Hmmmm, Astrometry.net result of the plate solve shows it IS the core of the Rosette, sounds like I might be right regarding the nebula? So the original question changes to can anyone confirm just how dim this nebula is with a standard DSLR?
I have added the astrometry.net result image also...
Cheers
Chris
Last edited by Screwdriverone; 16-01-2012 at 11:07 AM.
Reason: Added M1 test snap
|